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Earth, Planets and Space
Fig. 9 | Earth, Planets and Space

Fig. 9

From: Segmentation characteristics of deep, low-frequency tremors in Shikoku, Japan using machine learning approaches

Fig. 9

Conceptual model of the tremor properties below Shikoku. The viscosity of the background region was proposed by Ohta and Ide (2017) based on the very low-frequency characteristics, where Areas A–B are characterized by high viscosity and densely distributed asperities. The strength of the asperities was proposed by Kano et al. (2018), and the size of the tremor zone was derived in this study

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